AP Biology

Unit 4: Cell Communication and Cell Cycle

AP Bio Unit 4 Trivia

Cell Communication

Feedback Mechanisms and the Cell Cycle

Abiotic Signaling - Slides

Nervous System - Slides

Body Systems and Cell Signalling Trivia

4.1 Cell Communication

4.0 Game of 5s: AP Bio Unit 4 Review Trivia

Cell Signaling - Slides

4.0 Unit 4 Overview: Cell Communication and Cell Cycle

Endocrine System - Slides

Presentation slides, Body systems 

4.2 Introduction to Signal Transduction

4.7 Regulation of Cell Cycle

4.5 Feedback

Abiotic Signaling

4.3 Signal Transduction

Immune System

Mitosis & Meiosis - Slides

Cell Signaling

Immune System - Slides

Nervous System

4.4 Changes in Signal Transduction Pathways

Body systems

4.6 Cell Cycle

Endocrine System

Mitosis & Meiosis

Cell Communication - Slides

Administration 1

Administration 2

Administration 3

AP Biology Exam Prep 2020 | Reviews + Free Study Help | Fiveable

Learn about the chemistry of life in unit 1 of the AP Biology course. We'll cover topics such as the structure of water, hydrogen bonding, elements of life, biological macromolecules, and nucleic acids. Prepare for the exam with these resources and you be on your way to crush the AP Bio exam!

Unit 1: Chemistry of Life

Chemistry of Life

Unit 2 of AP Biology covers cell structure and function. We'll go over key topics such as subcellular components, cell size, plasma membranes, membrane permeability, membrane transport, facilitated diffusion, tonicity, osmoregulation, and cell compartmentalization. 

Unit 2: Cell Structure and Function

Cell Structure and Function

Unit 3 of AP Biology is all about cellular energetics. Review topics such as enzyme structure, enzyme catalysis, environmental impacts on enzyme function, cellular energy, and photosynthesis. 

Unit 3: Cellular Energetics

Cellular Energetics

Learn about how cells communicate and reproduce in unit 4 of AP Biology. Our study guides for unit 4 cover cell communication, signal transduction, changes in signal transduction pathways, feedback, cell cycle basics, and regulation of the cell cycle. 

Cell Communication and Cell Cycle

Get a solid understanding of heredity in unit 5 of the AP Biology exam. We'll cover topics such as meiosis, genetic diversity, mendelian genetics, non-mendelian genetics, environmental effects on phenotype, and chromosomal inheritance. 

Unit 5: Heredity

Heredity

Join us in exploring gene expression and regulation for the AP Biology exam. We'll cover all the topics in unit 6, such as DNA and RNA structure, replication, transcription, RNA processing, translation, regulation of gene representation, cell specialization, mutations, and biotechnology. 

Unit 6: Gene Expression and Regulation

Gene Expression and Regulation

Understanding natural selection is crucial to learning about how ecosystems function. Learn about unit 7 of AP Biology as we cover topics such as artificial selection, population genetics, hardy-weinberg equilibrium, evidence of evolution, common ancestry, continuing evolution, phylogeny, speciation, extinction, and origin of life on earth. 

Unit 7: Natural Selection

Natural Selection

Ecology is all about the interactions that organisms have amongst themselves and with their environment. In unit 8 of AP Biology, we'll cover topics such as responses to the environment, energy flow, population ecology, the effect of density of populations, community ecology, etc. 

Unit 8: Ecology

Ecology

The home for AP Biology reviews (including labs) as well as study strategies specific to AP Bio. You'll surely find a general resource that will improve your test-taking skills and help prepare for the exam.

General Review

Get ready to ace the multiple-choice questions of the AP Biology exam. We'll go over how the MCQs are structured, how to approach each question, and some last minute tips. By knowing the question types and the skills accessed, you'll be prepared in no time!

Multiple Choice Questions (MCQ)

Learn how to effectively answer free response questions for the AP Biology exam. We'll breakdown the FRQs and go over strategies on how to ace them. You'll be prepared with sample FRQ review videos, slides, and study guides! 

Free Response Questions (FRQ)

Blogs

Exam Reviews 2020

2019 Reviews

Get the answers to your questions from these AP Biology question and answer sessions. You'll be able to get rid of any uncertainties and feel more confident about the exam!

Q & A sessions

Get a comprehensive review of the AP Biology course. Learn every concept and unit to refresh your mind or even cram. These big reviews will serve as the ultimate preparation for the AP Biology exam. You'll feel ready for anything the test gives you and ace it in no time!

Big Reviews: Finals & Exam Prep

AP Cram Sessions 2021

Live Cram Sessions 2020

Big Idea #1: Evolution

Big Idea #2: Cellular Processes

Big Idea #3: Genetics and Information Transfer

Big Idea #4: Interactions

Live Cram Sessions 2019

Free 2020 ACT Test Prep | Video Reviews + Study Tips | Fiveable

Reading

Writing

Math

Science

Essay

First Unit

AP Art History Exam Prep 2020 | Reviews + Free Study Help | Fiveable

AP Art History

Unit 1: Global Prehistory, 30,000–500 bce

Unit 2: Ancient Mediterranean, 3500 bce–300 ce 

Unit 3: Early Europe and Colonial Americas, 200–1750 ce 

Unit 4: Later Europe and Americas, 1750–1980 ce

Unit 5: Indigenous Americas, 1000 bce–1980 ce 

Unit 6: Africa, 1100–1980 ce 

Unit 7: West and Central Asia, 500 bce–1980 ce 

Unit 8: South, East, and Southeast Asia, 300 bce–1980 ce 

Unit 9: The Pacific, 700–1980 ce 

Unit 10: Global Contemporary, 1980 ce to Present

Exam Reviews

AP Calculus AB/BC Exam Prep | Reviews +  Free Practice | Fiveable

AP Calculus AB/BC

Unit 1: Limits & Continuity

Unit 2: Differentiation: Definition & Fundamental Properties

Unit 3: Differentiation: Composite, Implicit & Inverse Functions

Unit 4: Contextual Applications of the Differentiation

Unit 5: Analytical Applications of Differentiation

Unit 6: Integration and Accumulation of Change

Unit 7: Differential Equations

Unit 8: Applications of Integration

Unit 9: Parametric Equations, Polar Coordinates & Vector Valued Functions (BC Only)

Unit 10: Infinite Sequences and Series (BC Only)

Exam Review 2020

AP Chemistry Review 2020 | Examp Prep +  Free Practice | Fiveable

AP Chemistry

Unit 1: Atomic Structure and Properties

Unit 2: Molecular and Ionic Compound Structures and Properties

Unit 3: Intermolecular Forces and Properties

Unit 4: Chemical Reactions

Unit 5: Kinetics

Unit 6: Thermodynamics

Unit 7: Equilibrium

Unit 8: Acids and Bases

Unit 9: Applications of Thermodynamics

Introduction

AP Chemistry Essentials

Multiple Choice Questions

Free Response Questions

Q and A sessions

Test

AP Chinese Exam Prep 2020 | Reviews + Free Study Help | Fiveable

AP Chinese 

Unit 1: Families in Different Societies

Unit 2: The Influence of Language and Culture on Identity

Unit 3: Influences of Beauty and Art

Unit 4: How Science and Technology Affect Our Lives

Unit 5: Factors That Impact the Quality of Life

Unit 6: Environmental, Political, and Societal Challenges

Exam Skills - FRQ/MCQ

AP Comp Gov Exam Prep 2020 | Reviews + Free Study Help | Fiveable

AP Comparative Government

Unit 1: Political Systems, Regimes, and Governments

Unit 2: Political Institutions 

Unit 3: Political Culture and Participation

Unit 4: Party and Electoral Systems and Citizen Organizations

Unit 5: Political and Economic Changes and Development

Exam Skills

Free Reviews

AP CSA Exam Prep 2020 | Reviews + Free Study Help | Fiveable

AP Computer Science A

Unit 1: Primitive Types

Unit 2: Using Objects

Unit 3: Boolean Expressions and if Statements

Unit 4: Iteration

Unit 5: Writing Classes

Unit 6: Array

Unit 7: ArrayList

Unit 8: 2D Array

Unit 9: Inheritance

Unit 10: Recursion

AP CSP Prep 2020 | Reviews + Free Study Help | Fiveable

AP Computer Science Principles

Big Idea 1: Creative Development

Big Idea 2: Data

Big Idea 3: Algorithms and Programming

Big Idea 4: Computer Systems and Networks

Big Idea 5: Impact of Computing 

Exam Prep

AP English Reviews | Free Exam Prep + Practice Help | Fiveable

AP English Language

Kevin Steinhauser

Free Response #1: Synthesis 

Free Response #2: Rhetorical Analysis

Free Response #3: Argument

 Multiple Choice Questions

2019-2020

2020 AP English Lit Prep | Live Reviews + Free Practice | Fiveable

AP English Literature

Free Response #1: Poetry

Free Response #2: Prose Fiction

Free Response #3: Literary Argument

Past Events

Q and A Sessions

AP Enviro Exam Prep 2020 | Reviews + Practice Questions | Fiveable

AP Environmental Science

Unit 1: The Living World: Ecosystems

Unit 2: The Living World: Biodiversity

Unit 3: Populations

Unit 4: Earth Systems and Resources

Unit 5: Land and Water Use

Unit 6: Energy Resources and Consumption

Unit 7: Atmospheric Pollution

Unit 8: Aquatic and Terrestrial Pollution

Unit 9: Global Change

Multiple Choice Questions (MCQs)

Free Response Questions (FRQs)

Teacher Professional Development 

AP Euro Exam Prep 2020 | Reviews + Practice Questions | Fiveable

AP European History

Tom Richey

Unit 1: Renaissance and Exploration

Unit 2: Age of Reformation

Unit 3: Absolutism and Constitutionalism

Unit 4: Scientific, Philosophical, and Political Developments

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2021 AP Exams Guide

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Exam Dates:

may 14, 2021

, may 27, 2021

, june 11, 2021

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